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<title>原理</title>	
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<h2><a name="_Toc8369"><span lang=EN-US style='font-weight:normal'>2.1<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span
style='font-family:黑体'>原理</span></a></h2>

<p class=MsoNormal style='text-indent:21.0pt'><span style='font-family:宋体'>资源发现原理，简单来说就是通过端口镜像到达</span><span
lang=EN-US>APM</span><span style='font-family:宋体'>的数据包包含监控服务器的所有的网络链路，例局域网中有一台客户机（</span><span
lang=EN-US>192.168.0.124:1234</span><span style='font-family:宋体'>）向监控服务器（</span><span
lang=EN-US>192.168.0.123:80</span><span style='font-family:宋体'>）发起一个</span><span
lang=EN-US>HTTP</span><span style='font-family:宋体'>请求，这个请求的数据包和这个请求后续产生的数据包就会被镜像到</span><span
lang=EN-US>APM</span><span style='font-family:宋体'>服务器，</span><span lang=EN-US>APM</span><span
style='font-family:宋体'>服务器解析这条请求数据就会发现</span><span lang=EN-US>192.168.0.124:1234-&gt;192.168.0.123:80</span><span
style='font-family:宋体'>的数据连接。</span></p>

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